I totally agree with you it is a matter of practice rather than the device. At the moment I hold just 18-55mm lens. I do not think to change the body in the near future maybe I will buy a larger lens, or also I heard it is possible also to borrow for a while. I did not know Nikon the lens of Nikon was compatible with the ones of Canon. It is better to read different reviews before buying anything and also better to keep the old lenses if they are still useful. Thanks again for your response